【正文】
~300 之間為報(bào)告依據(jù)。9 ml 9 ml 9 ml 9 ml1 ml 1 ml 1 ml1 ml 1 m l 1 m l 1 m l 2 2 2 ★ 技術(shù)要求:樣品充分混勻,操作熟練快速( 15~20min完成操作),嚴(yán)格無菌操作; ★注意事項(xiàng):每一支吸管只能用于一個(gè)稀釋度,樣品混勻處理,傾注平板時(shí)的培養(yǎng)基溫度; ★適用范圍:中溫、好氧和兼性厭氧、能在營養(yǎng)瓊脂上生長的微生物, ★誤差:多次稀釋造成的誤差是主要來源,其次還有由于樣品內(nèi)菌體分布不均勻、以及不當(dāng)操作 ColonyForming Unit When we observe colonies, we cannot assume each arose from just one cell originally plan ted on the medium, however. A pair, chain or cluster of ce lls which 39。land39。 on the medium in close proximity to each o ther can multiply and prod uce a single colony. Thus, we use the term colonyforming unit when we consider the mon origin for the cells of any term is us ually abbreviated CFU. 請(qǐng) 提 寶 貴 意 見 謝 謝